JPH01157453U - - Google Patents
Info
- Publication number
- JPH01157453U JPH01157453U JP1988047043U JP4704388U JPH01157453U JP H01157453 U JPH01157453 U JP H01157453U JP 1988047043 U JP1988047043 U JP 1988047043U JP 4704388 U JP4704388 U JP 4704388U JP H01157453 U JPH01157453 U JP H01157453U
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- conductivity type
- region
- semiconductor device
- bottom wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Bipolar Transistors (AREA)
- Element Separation (AREA)
- Bipolar Integrated Circuits (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988047043U JPH01157453U (it) | 1988-04-06 | 1988-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988047043U JPH01157453U (it) | 1988-04-06 | 1988-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01157453U true JPH01157453U (it) | 1989-10-30 |
Family
ID=31273275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988047043U Pending JPH01157453U (it) | 1988-04-06 | 1988-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01157453U (it) |
-
1988
- 1988-04-06 JP JP1988047043U patent/JPH01157453U/ja active Pending